CN102781567B - Fluid for fluidizing apparatus receives pedestal - Google Patents

Fluid for fluidizing apparatus receives pedestal Download PDF

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Publication number
CN102781567B
CN102781567B CN201180008930.6A CN201180008930A CN102781567B CN 102781567 B CN102781567 B CN 102781567B CN 201180008930 A CN201180008930 A CN 201180008930A CN 102781567 B CN102781567 B CN 102781567B
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CN
China
Prior art keywords
fluid
deflecting bar
pedestal
base plate
receives
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CN201180008930.6A
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Chinese (zh)
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CN102781567A (en
Inventor
克劳斯·斯坦克
保罗·克罗尔
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Andritz Fiber Drying AB
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Andritz Fiber Drying AB
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/36Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed through which there is an essentially horizontal flow of particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/44Fluidisation grids

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

The present invention relates to a kind of fluid for fluidizing apparatus (9) and receive pedestal (12), this fluid receives multiple deflecting bar pipes (1) that pedestal has multiple through hole (3) and arranges with a kind of overlap mode thereon.The invention is characterized in, this deflecting bar pipe (1) has microscler form, be arranged in fluid unit (9) in the vertical, be parallel on the main flow direction (19) of product, through hole (3) in base plate (2) and have the distance piece (6) forming the outflow cross section being used for fluidizing gas around deflecting bar pipe (1), wherein these susceptor through-holes (3) can advantageously generate microscler cross section.This achieve, while transferring material, good fluidisation is carried out to it.

Description

Fluid for fluidizing apparatus receives pedestal
Technical field
The present invention relates to and there is through hole and the fluid of the fluidizing apparatus of deflecting bar pipe that arranges in an overlapping manner receives pedestal thereon.
Background technology
Process massive material (drying, cooling, adjustment in fluidized system (fluidizing apparatus) ...).Pending material by equipment, fluidization and be statistically transferred to overflow.Underflow is used for draining and release coarse fodder.Fluidization is subject to gases affect, this gas by fan delivery to bellows and flow uniformly through fluid receive pedestal in the layer of product.This gas leaves equipment by dust removing units by blower fan absorption.
The fluid with the design of extremely broad variety receives the flow of pedestal for distributing gas equably in fluid unit.Fluid receives the one or more function of base combination so that the operation making equipment stable becomes possibility.These particularly exist:
Even formed due to bubble, in the situation of the back-pressure that the local that secondary flow etc. cause is different, air-flow being uniformly distributed from the teeth outwards;
The isolation of air chamber (bellows) and gas producing formation, particularly prevents product from dropping onto in air chamber;
The resistance avoiding gas not flow through is extremely surperficial, because the accumulation of product understands cause thermal damage and participate in the exchange of the product that fluid bed causes inappositely;
Transmission is because the size of particle can not fluidization and drop on fluid and receive particle in pedestal suitably.
Realize distribution of gas equably, because fluid receives pedestal, there is the suitable pressure loss relevant to the change of the pressure occurred in gas producing formation.Ideally, this is by the accumulation of the fluid of the least possible loss realizes, namely by pressure energy being as far as possible fully converted into kinetic energy, there is maximum momentum being delivered to particle (CH629394).
In practice, usually use the pressure loss of 50-300daPa, because their representatives are traded off preferably between operating reliability and energy demand.This means that fluid receives pedestal and has fluid by it typically is the free cross-section of the 0.5%-15% of whole surface area.
This can pass through sieve aperture pedestal, sintering pedestal, porous pedestal or punching pedestal realize, and its free cross-section distributes on the whole surface well, or by nozzle base, wherein this free cross-section is concentrated on several nozzle.
During operation, undesirably product is dripped by the pressure loss and not excessive through hole specifically correctly determining size.In the downtime, but, this must be guaranteed by geometry, as such as very little through hole (depends on mean particle dia but usually at porous pedestal, sieve-like pedestal and punching pedestal (close to 0.2mm), but, this particularly tends to the situation (conical surface corresponding to being greater than massive material) (with reference to EP0103708, CH629394) of blocking or through hole is overlapping with dish, bar etc. in recyclegas operation.Self closing nozzle be also such as from column technology (gas/liquid fluidisation bed) be known.
During operation, but product determines that these are overlapping, because these surfaces are positioned at slip-stream side.This prevents (such as EP0215327 on these surfaces by installing displacement body; EP0103708).As a result, require larger effort, and if bar is laterally positioned at the main transmission direction of product, will extra resistance be had when transmitting coarse fodder.
Some schemes of the incomplete fluidization coarse fodder of transmission are implemented technically.This transmission can by impelling whole fluid unit or being only that bellows or fluid reception seat vibration are first mechanically assisted.For avoiding sizable expenditure and further shortcoming in design, implement pneumatic transmission action by forming fluid reception pedestal suitably:
When punch metal plate pedestal, asymmetric instrument produces the hole of opening in side, and gas flows out forward and upwards obliquely, therefore applying is parallel to the Momentum Transfer of pedestal to particulate (especially the brand name of Conidur, Coniperf);
When having the nozzle base in Rotational Symmetry gap, totality being parallel to base plate, but flowing in all directions.By closing, at least there is the half in the gap of adequate sheet, outflow direction and the direction of propagation therefore of any expectation can be set;
When the nozzle base of the chlamydate lateral clearance of tool, transmission direction is made a reservation for regularly by the arrangement in gap, but this is conveyed through the cover fillet be laterally positioned at and hinders.
Receive pedestal according to the fluid in first technology and there is shortcoming, but, can be avoided by configuration according to the present invention:
Because manufacture reason, punching pedestal has less plate thickness, therefore to wearing and tearing and responsive to temperature, and applies restricted;
Reduce after passing fluid bed several centimetres at the momentum of the air-flow occurred at a high speed; Need the nozzle of the distribution of a large amount of proper closedown to maintain transmission, this means the cost that adds and more obstacle;
The nozzle base with lateral clearance tends to form deposition on cover fillet, can not install displacement body and not hinder transmission further.
Summary of the invention
Therefore target of the present invention is to provide fluid and receives pedestal, except mixing preferably and eddy current, can also produce the transmission of coarse fodder.
The invention provides a kind of fluid for fluid unit and receive pedestal, this fluid receives multiple deflecting bar pipes that pedestal has multiple through hole and arranges with a kind of overlap mode thereon, wherein these deflecting bar pipes have a kind of microscler form and have the multiple distance pieces defining the outflow cross section for fluidizing gas in the periphery of this deflecting bar pipe, and wherein these deflecting bar pipes have a kind of prism configuration, wherein these susceptor through-holes are formed as with a kind of microscler cross section, wherein, these deflecting bar pipes are arranged among this fluid unit in a longitudinal fashion, be parallel to the main flow direction of product, on these through holes of base plate, and these distance pieces are in the form of deflector, wherein, an open angle is formed respectively between two deflectors, and these distance pieces being wherein in this deflector form impart a flow direction in this fluidizing gas, this flow direction is parallel to this base plate and has the one-component in the main flow direction of this product, wherein these prisms are installed into and similarly are a triangle and make its point upward, wherein, these distance pieces of the middleware form being in multiple separation are clamped on this base plate by these deflecting bar pipes, and these prism deflecting bar pipes are secured on the multiple webs in this base plate.
This can be realized according to the present invention, because this deflecting bar pipe has microscler form, be arranged in the vertical in fluid unit, be parallel to the main flow direction of product, on through hole in base plate, and have the outflow cross section distance piece formed around deflecting bar pipe for fluidizing gas, wherein this susceptor through-holes can advantageously generate the cross section of extension.
These measures realize the fluidization of good coarse fodder, provide transmission characteristic simultaneously.
A preferred embodiment of the present invention is characterised in that distance piece is the form of deflector.This makes the transmission of the target of product stream become possibility.
Favourable configuration feature of the present invention is that distance piece is with the form of deflector, makes fluidizing gas form the flow direction being parallel to base plate, and in the main flow direction of product, has a part.Therefore the mode process material can expected, such as drying, cooling etc.
A preferred embodiment of the present invention is characterized in that deflector shape (α) at an angle, and wherein this angle (α) can be advantageously acute angle, and such as between 30 ° and 90 °.Therefore the extension of this transmission can advantageously set.
If for the 40-500daPa pressure loss of base plate setting, this proves particularly advantageous, is flow through the height of distance piece by this fluid.Therefore likely realize particularly preferred compromise between operating reliability and energy demand.
Advantageously, distance piece is the form of the middleware of the separation with the deflector forming passage, therefore easily may change pressure loss and the flow rate of the expectation of gas by changing channel height.
Favourable configuration of the present invention is characterized in that deflecting bar pipe has prism configuration, and wherein this prism can be installed as a triangle, and has point upward, this wedge angle advantageously between 10 ° and 130 °, such as, between 50 ° and 70 °.By means of prism form, the material be deposited on deflecting bar pipe can be prevented in fact, therefore greatly increase the operating time of fluidizing apparatus.
Prism-shaped deflection plate can be fixed to Cross slat under base plate.If prism be fixed to be formed in base plate web this be proved to be particularly advantageous.
Favourable embodiment of the present invention is characterized in that prism clamping distance piece, with the form of independent middleware to base plate.
Accompanying drawing explanation
The present invention is described by exemplary reference accompanying drawing, wherein
Fig. 1 illustrates the schematic diagram of fluidizing apparatus;
Fig. 2 illustrates the cross section being received pedestal by fluid according to the present invention;
Fig. 3 illustrates the plane receiving pedestal as shown in FIG. 2 according to fluid of the present invention;
Fig. 4 illustrates the sectional view being received pedestal by fluid as shown in Figure 2;
Fig. 5 illustrates the sectional view of the further variant being received pedestal by fluid according to the present invention;
Fig. 6 illustrates the top view receiving pedestal according to fluid of the present invention;
Fig. 7 illustrates the top view of the arrangement receiving pedestal according to fluid of the present invention;
Fig. 8 illustrates the top view of the further variant receiving pedestal according to fluid of the present invention;
Fig. 9 illustrates the sectional view by receiving pedestal along line IX-IX fluid as shown in FIG. 8.
Detailed description of the invention
Fig. 1 illustrates process (drying, cooling, adjustment ...) fluidized system of massive material.Pending material 15, by fluidizing apparatus 9, is fluidized and is statistically transferred to overflow 18 at product flow direction (arrow 19).This underflow 17 is used for draining and release coarse fodder.Fluidization is subject to the impact of the gas being transferred to bellows 11 by blower fan 10, and is flow to equably in gas producing formation by fluid reception pedestal 12.Multiple deflecting bar pipe 1 is arranged in fluid and receives on pedestal 12.Gas leaves equipment by means of dust removing units 13, is drawn by blower fan 14.
Fig. 2 illustrates the variant receiving pedestal according to fluid of the present invention.It has the through hole (nozzle) of longitudinal arrangement.Be parallel to the baffling of the air-flow of base plate and the scope of through hole 3 received at fluid in the base plate 2 of pedestal 12 to be subject to deflecting bar pipe 1 and to affect, deflecting bar pipe 1 in this case triangle as shown in the figure, prismatic ducted body.
Deflector 6 in figure 3 shown in top view looked, these to be arranged on through hole 3 and the gas of baffling appearance in a direction of arrow 20.Opening angle α between two deflectors 6 determines the extension transmitted.Deflector 6 can dock mutually in end, or only just in base plate 2 through hole 3 extend, in this case, carefully must guarantee that fluid is with suitable overlap reliably baffling.Fig. 4 illustrates the cross section by Fig. 2, sees the prismatic of deflecting bar pipe 1 especially preferably.Prismatic deflecting bar pipe 1 can be fixed to base plate 2 in many ways, such as, by means of the screw being inserted through guide plate 4, and supports that deflecting bar pipe 1 is against base plate 2, the shape 5 under being positioned laterally at through hole 3.This variant is particularly suitable for high temperature application to absorb stress.Another possibility uses the web instead of shape 5 that are integrated on base plate 2, and use a screw element being welded to deflecting bar pipe 1 instead of the screw penetrated.
The width (length of the base side of triangle) of deflecting bar pipe 1, to cover 20% to 80% of the overall base width of fluid unit, is generally such way selection in the region of 50%.This is highly advantageous same as or is greater than the corresponding conical surface of massive material to be avoided deposition.But the main efficacy results of this arrangement forms quite high gas velocity in prismatic, on base plate, instead of the remainder in region at fluid bed.This effect is, the material of the decline in the region between prismatic still can fluidization or at least keep mobile.By increasing many times that prismatic height reaches pedestal side further, this region can extend also to control sizable amount of coarse fodder.
Arrange with this, advantageously achieve in fact incompatible requirement in fluidizing apparatus: low flow regime speed discharges with minimum dust, high fluidization velocity is to transmit coarse fodder ratio.
Further change of the present invention is as (top view) shown in fig. 5 and fig..In order to become possibility by change channel height h change pressure loss and gas flow, advantageously directly can not weld deflector 6 to deflecting bar pipe 1, but they are arranged in gripper shoe 7, gripper shoe 7 is detachably fixed to deflecting bar pipe 1 for their part.
Fig. 7 illustrates the arrangement receiving pedestal 12 according to fluid of the present invention, and wherein the transmission characteristic of pedestal is improved further, and its mode is for eluting gas gives one relative to the direction parts in the longitudinal direction of nozzle in outflow cross section.Be formed in smooth passage on base plate 2 closing on the intermediate space between deflecting bar pipe 1, these just in time flow through fluid unit 9 in product flow direction 19 from product inlet 15 to products export 18.By at a kind of applicable extraction element of device 9 end on the height of base plate 2, such as starlike feeder (Zellenradschleuse) or screw conveyor, collect and discharge the coarse fodder of movement.The air-flow part that the subsequent transmission of the coarse fodder of location advances further through in channel direction is assisted.The direction of air-flow is made a reservation for by the deflector 6 in nozzle gap.
Fig. 8 illustrates the mode that the fixing another kind of fixing deflector is possible.At this, deflector 6 is fixed on support bar 8, and this framework is clamped between base plate 2 and deflecting bar pipe 1.Fig. 9 illustrates in fig. 8 along the sectional view of the described embodiment of line IX-IX.

Claims (7)

1. the fluid for fluid unit receives pedestal, this fluid receives multiple deflecting bar pipes that pedestal has multiple through hole and arranges with a kind of overlap mode thereon, wherein these deflecting bar pipes (1) have a kind of microscler form and have the multiple distance pieces (6) defined in the periphery of this deflecting bar pipe (1) for the outflow cross section of fluidizing gas, and wherein these deflecting bar pipes (1) have a kind of prism configuration, wherein these susceptor through-holes (3) are formed as with a kind of microscler cross section, wherein, these deflecting bar pipes (1) are arranged among this fluid unit (9) in a longitudinal fashion, be parallel to the main flow direction (19) of product, on these through holes (3) of base plate (2), and these distance pieces are in the form of deflector (6), it is characterized in that, an open angle (α) is formed respectively between two deflectors (6), and these distance pieces (6) being wherein in this deflector form impart a flow direction (20) in this fluidizing gas, this flow direction is parallel to this base plate (2) and has the one-component in the main flow direction (19) of this product, wherein these prisms are installed into and similarly are a triangle and make its point upward, wherein, these distance pieces (6) being in the middleware form of multiple separation are clamped on this base plate (2) by these deflecting bar pipes (1), and these prism deflecting bar pipes (1) are secured on the multiple webs in this base plate (2).
2. fluid as claimed in claim 1 receives pedestal, and it is characterized in that, be the pressure loss that this base plate sets 40-500daPa by the height of these distance pieces (6), and fluid is through this base plate.
3. the fluid as described in one of claim 1 and 2 receives pedestal, and it is characterized in that, these distance pieces are the forms of the middleware being in multiple separation, and these middlewares have the multiple deflectors (6) defining multiple passage.
4. the fluid as described in one of claim 1 and 2 receives pedestal, and it is characterized in that, the point angle of the deflecting bar pipe (1) of this prism is between 10 ° and 130 °.
5. fluid as claimed in claim 1 receives pedestal, and it is characterized in that, this angle (α) is an acute angle.
6. fluid as claimed in claim 1 receives pedestal, and it is characterized in that, this angle (α) is between 30 ° and 90 °.
7. the fluid as described in one of claim 1 and 2 receives pedestal, and it is characterized in that, the point angle of the deflecting bar pipe (1) of this prism is between 50 ° and 70 °.
CN201180008930.6A 2010-02-12 2011-01-20 Fluid for fluidizing apparatus receives pedestal Active CN102781567B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATA207/2010A AT509388B1 (en) 2010-02-12 2010-02-12 FLOOD FLOOR FOR A FLUIDIZING APPARATUS
ATA207/2010 2010-02-12
PCT/AT2011/000035 WO2011097660A1 (en) 2010-02-12 2011-01-20 Flow accepting base for a fluidizing apparatus

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CN102781567A CN102781567A (en) 2012-11-14
CN102781567B true CN102781567B (en) 2015-08-19

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US (1) US8495824B2 (en)
EP (1) EP2533887B1 (en)
CN (1) CN102781567B (en)
AT (1) AT509388B1 (en)
AU (1) AU2011214880B2 (en)
BR (2) BR112012019960B1 (en)
CA (1) CA2789341C (en)
CL (1) CL2012002214A1 (en)
DK (1) DK2533887T3 (en)
EA (1) EA023088B1 (en)
ES (1) ES2552178T3 (en)
HU (1) HUE025917T2 (en)
IL (1) IL221386A (en)
PL (1) PL2533887T3 (en)
PT (1) PT2533887E (en)
SI (1) SI2533887T1 (en)
WO (1) WO2011097660A1 (en)

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CN102755832A (en) * 2012-07-30 2012-10-31 上海市张江高科技园区新能源技术有限公司 Desulfurization returning device
US10422580B2 (en) 2012-11-01 2019-09-24 Janak Ramanlal Shah System for controlled concentration and solids recovery
CN102913916B (en) * 2012-11-02 2015-06-17 福建省丰泉环保控股有限公司 Moving grate drying bed-circulating fluidized bed boiler-compounded incineration equipment
AT514275B1 (en) * 2013-05-07 2015-05-15 Andritz Tech & Asset Man Gmbh Process for the production of salts with reduced content of water of crystallization
CA2891002C (en) * 2015-05-13 2022-09-06 Veronica Rose Zimmerman Modeling a bed plate and its use
CN108854857B (en) * 2017-05-11 2021-05-18 中国石化工程建设有限公司 Flow guide type support grid for reactor catalyst bed layer and fluidized bed reactor
CN111829330B (en) * 2020-07-28 2021-11-05 安化县渠之源茶业股份公司 Progressive heating type tea drying equipment

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AU2011214880B2 (en) 2015-01-22
ES2552178T3 (en) 2015-11-26
EA201290715A1 (en) 2013-03-29
IL221386A0 (en) 2012-10-31
AT509388B1 (en) 2012-06-15
PL2533887T3 (en) 2016-01-29
WO2011097660A1 (en) 2011-08-18
CN102781567A (en) 2012-11-14
IL221386A (en) 2017-02-28
US20110197467A1 (en) 2011-08-18
EP2533887B1 (en) 2015-08-12
AU2011214880A1 (en) 2012-08-23
BR112012019960B1 (en) 2018-05-22
DK2533887T3 (en) 2015-11-16
CA2789341A1 (en) 2011-08-18
SI2533887T1 (en) 2016-03-31
EP2533887A1 (en) 2012-12-19
CA2789341C (en) 2018-06-19
PT2533887E (en) 2015-11-18
US8495824B2 (en) 2013-07-30
BR112012019960A2 (en) 2017-12-05
AT509388A1 (en) 2011-08-15
HUE025917T2 (en) 2016-05-30
EA023088B1 (en) 2016-04-29
CL2012002214A1 (en) 2013-03-01

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